Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

rotten egg smell in 4WD

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by johnnieg, May 2, 2003.

  1. johnnieg

    johnnieg 1/2 ton status

    Joined:
    Nov 10, 2002
    Posts:
    130
    Likes Received:
    0
    Location:
    CSU, Ft. Collins, CO
    I was by Pueblo today and did some light wheeling. I went up a pretty steep hill then a couple of little bumps. on the way back down, I noticed a rotten egg smell. It has smelled like this before (aprox 2-3 yrs ago) and I replaced the EGR. Now when in 4WD it smelled rotten and when I went back in 2WD I couldn't smell it anymore. Could it be that it was just running rich or what? /forums/images/graemlins/k5.gif
     
  2. johnnieg

    johnnieg 1/2 ton status

    Joined:
    Nov 10, 2002
    Posts:
    130
    Likes Received:
    0
    Location:
    CSU, Ft. Collins, CO
    C'mon guys /forums/images/graemlins/1zhelp.gif me out here. Any and all thoughts are appreciated!
     
  3. MUD JUNKIE

    MUD JUNKIE 1/2 ton status

    Joined:
    Oct 24, 2001
    Posts:
    379
    Likes Received:
    0
    Location:
    Reddick,florida
    do you have a manual tranny?
    the only egg smell I could think of is a burning clutch,just like what you said while climbing a hill,maybe you were smoking the clutch?
     
  4. 70~K5

    70~K5 1/2 ton status

    Joined:
    Apr 13, 2002
    Posts:
    2,032
    Likes Received:
    0
    Location:
    sillycon valley
    You'll also get a rotten egg smell from a cat convertor going bad.
     
  5. MudFlap

    MudFlap 1/2 ton status

    Joined:
    Dec 2, 2002
    Posts:
    250
    Likes Received:
    0
    Location:
    Winston-Salem, NC
    I second the vote for the cat.

    Trey
     
  6. rawhead

    rawhead Registered Member

    Joined:
    Dec 6, 2002
    Posts:
    52
    Likes Received:
    0
    Location:
    So. California
    I have the same problem. It doesn't smell unless I get into the pedal pretty good. I replaced the entire exauhst from the Cat back (needed it anyhow). I still get the smell. I believe the problem is the charcoal canister. Normally the smell is from a bad cat though. Tough call.
     
  7. JustHorsinArownd

    JustHorsinArownd Registered Member

    Joined:
    Mar 20, 2003
    Posts:
    77
    Likes Received:
    0
    Location:
    Flagstaff, Az.
    I'm with the clutch guys. Seems to me that you were probably feathering the clutch on the way up the hill and glazed it a bit. Especially since you said you only smelled it once a couple of years ago. Don't you worry about it just try to trust the ponies under the hood. /forums/images/graemlins/thumb.gif
     
  8. SickboySS

    SickboySS 1/2 ton status

    Joined:
    Nov 24, 2002
    Posts:
    154
    Likes Received:
    0
    Location:
    Auburn Ma
    its more than likely a cat, cuz when you're on it in 4wd its putting more of a load on the engine than in 2wd...also when you stomp on it in 2wd it puts more of a load on the motor and will produce the smell too
     
  9. RatMan

    RatMan 1/2 ton status

    Joined:
    Jul 27, 2002
    Posts:
    270
    Likes Received:
    0
    Location:
    Marietta, Georgia
    bad bateries can make a rotten egg smell too.

    sulfuric acid sucks
     
  10. Gary 86 K5

    Gary 86 K5 1/2 ton status

    Joined:
    Oct 7, 2002
    Posts:
    204
    Likes Received:
    0
    Location:
    Mentor, OH
    I can almost guarantee that its the cat. I've seen them go bad and reek like eggs many times. /forums/images/graemlins/k5.gif
     
  11. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,982
    Likes Received:
    191
    Location:
    Roy WA
    Improper mixture will net you a rotten egg smell as well. BTDT, brand new converters can stink with an incorrect fuel mixture, typically when you've just got done really romping on it.
     
  12. johnnieg

    johnnieg 1/2 ton status

    Joined:
    Nov 10, 2002
    Posts:
    130
    Likes Received:
    0
    Location:
    CSU, Ft. Collins, CO
    No manual tranny, stock 700r4. So it must be the cat. I think it's the original from '88, it's bigger than the muffler. oh well thanx y'all! /forums/images/graemlins/thumb.gif
     
  13. rogerwilco71

    rogerwilco71 1/2 ton status

    Joined:
    Sep 22, 2002
    Posts:
    179
    Likes Received:
    0
    Location:
    Central-Cal
    Let us know if it's the cat, or if you're just not rolling the windows down on the vehicle when farting...could be one or the other. Either way, it's from you hitting the gas /forums/images/graemlins/thumb.gif
     

Share This Page